<?php
declare(strict_types=1);

namespace Tests\unit\Core;

use SiteWeaver\Core\Config;
use PHPUnit\Framework\TestCase;

final class ConfigTest extends TestCase
{
    public function testLoadsEnvironmentVariables(): void
    {
        $env = [
            'APP_ENV' => 'testing',
            'DB_HOST' => 'localhost',
            'DEBUG'   => true,
        ];

        $config = new Config($env);

        $this->assertSame('testing', $config->get('APP_ENV'));
        $this->assertSame('localhost', $config->get('DB_HOST'));
        $this->assertTrue($config->get('DEBUG'));

        // unknown key returns null
        $this->assertNull($config->get('NON_EXISTENT_KEY'));
    }

    public function testAllReturnsMergedArray(): void
    {
        $env = [
            'FOO' => 'bar',
            'BAZ' => 123,
        ];

        $config = new Config($env);

        $this->assertSame($env, $config->all());
    }
}